QFN Vishay Electro-Films CHIP RESISTORS NiCr Thin Film, Top-Contact Resistor FEATURES * Wire bondable Product may not be to scale * Chip size: 0.020 inches square * Resistance range: 10 to 510 k * Resistor material: Nichrome * Quartz substrate: < 0.1 pF shunt capacitance The QFN series nichrome on quartz resistor chips offer a combination of nichrome stability, excellent frequency response and small size. * Power: 25 mW The QFNs are manufactured using Vishay Electro-Films (EFI) sophisticated thin film equipment and manufacturing technology. The QFNs are 100 % electrically tested and visually inspected to MIL-STD-883. APPLICATIONS Vishay EFI QFN top-contact resistor chips are widely used in hybrid packages where space is limited. Designed with capacity to handle substantial power loads, they also have the benefit of nichrome stability. Recommended for hermetic environments where die is not exposed to moisture. TEMPERATURE COEFFICIENT OF RESISTANCE, VALUES AND TOLERANCES Tightest Standard Tolerance Available 1% 0.5 % PROCESS CODE 0.1 % CLASS H* 203 201 202 200 25 ppm/C 50 ppm/C 100 ppm/C 250 ppm/C CLASS K* 207 205 206 204 Gold terminations *MIL-PRF-38534 inspection criteria 1 10 30 100 200 k 360 k 510 k STANDARD ELECTRICAL SPECIFICATIONS PARAMETER Noise, MIL-STD-202, Method 308 100 - 250 k < 100 or > 251 k - 35 dB typ. - 20 dB typ. Stability, 1000 h, + 125 C, 50 mW 0.1 % max. R/R Operating Temperature Range - 55 C to + 125 C Thermal Shock, MIL-STD-202, Method 107, Test Condition F 0.25 % max. R/R High Temperature Exposure, + 150 C, 100 h 0.5 % max. R/R Dielectric Voltage Breakdown 200 V 1012 min. Insulation Resistance Operating Voltage 100 V max. DC Power Rating at + 70 C (Derated to Zero at + 175 C) 5 x Rated Power Short-Time Overload, + 25 C, 5 s www.vishay.com 50 For technical questions, contact: efi@vishay.com 25 mW 0.25 % max. R/R Document Number: 61079 Revision: 14-Mar-08 QFN NiCr Thin Film, Top-Contact Resistor Vishay Electro-Films 0.008 0.014 0.004 CHIP RESISTORS DIMENSIONS in inches 0.020 0.004 0.004 0.020 0.004 TYPICAL RANGE 56 - 7.4 k TYPICAL RANGE 10 - 55 TYPICAL RANGE 7.5 k - 510 k SCHEMATIC MECHANICAL SPECIFICATIONS in inches PARAMETER Chip Size 0.020 x 0.020 0.003 (0.51 x 0.51 0.05 mm) Chip Thickness 0.010 0.002 (0.254 0.05 mm) Chip substrate Material Quartz Resistor Material Nichrome (passivation optional) Bonding Pad Size 0.004 x 0.004 (0.10 x 0.10 mm) Number of Pads 2 Pad Material 15 kA minimum gold Backing None, lapped quartz Options: Aluminum bonding pads, 10 kA minimum thickness Consult Applications Engineer ORDERING INFORMATION Example: 100 % visual, 10 k, 1 %, 50 ppm/C TCR, gold pads, class H visual inspection W INSPECTION/ PACKAGING W = 100 % visually inspected parts in matrix tray per MIL-STD-883 X = Sample, commercial visually inspected parts loaded in matrix trays (4 % AQL) QFN PRODUCT FAMILY 202 PROCESS CODE See Process Code table 1000 RESISTANCE VALUE Use the first 4 digits significant digits of the resistance Available alternatives: Aluminum pads or gold back Passivation (thermal set plastic) Document Number: 61079 Revision: 14-Mar-08 For technical questions, contact: efi@vishay.com 1 MULTIPLIER CODE B = 0.01 A = 0.1 0=1 1 = 10 2 = 100 3 = 1000 4 = 10 000 F TOLERANCE CODE B = 0.1 % C = 0.2 % D = 0.5 % F = 1.0 % G = 2.0 % H = 2.5 % J = 5.0 % K = 10 % www.vishay.com 51 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1